code: def load_plugin(self, run_specs):
      logdir = self.get_temp_dir()
      for run_spec in run_specs:
          self.generate_run(logdir, *run_spec)
      multiplexer = event_multiplexer.EventMultiplexer()
      multiplexer.AddRunsFromDirectory(logdir)
      multiplexer.Reload()
      provider = data_provider.MultiplexerDataProvider(
          multiplexer, logdir
      )
      ctx = base_plugin.TBContext(
          logdir=logdir,
          multiplexer=multiplexer,
          data_provider=provider,
      )
      return graphs_plugin.GraphsPlugin(ctx)
  
imports: import collections.abc
  import math
  import os.path
  import tensorflow
  from google.protobuf import text_format
  from tensorboard import context
  from tensorboard import errors
  from tensorboard.backend.event_processing import data_provider
  from tensorboard.backend.event_processing import plugin_event_multiplexer
  from tensorboard.compat.proto import config_pb2
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.graph import graphs_plugin
  from tensorboard.util import test_util
label_desc: Use image node_id 4 for calling the GraphsPluginBaseTest obj's underlying member method code with example usage: obj.load_plugin(run_specs) and returns: graphs_plugin